Anyone heard of guava variety stone ruby?

Good morning, last summer I bought a guava labelled as ‘stone ruby’ from a nursery called Canarius, they don’t seem to know anthing specific about the variety, only a generalised description of guavas. Has anyone here heard of this actual variety and have any idea what colour it is, white, yellow or maybe pink? I know the word ruby in the name might imply red but i dont think this is necessarily indicative as the name also features the word stone which guavas obviously dont contain lol.